var speed = echarts.init(document.getElementById('speed'));
        var speed_option = {
      		  series: [
      		           {
      		             type: 'gauge',
      		             min: 0,
      		             max: 350,
      		             splitNumber: 7,
      		             axisLine: {
      		               lineStyle: {
      		                 width: 15,
      		                 color: [
      		                   [0.3, '#67e0e3'],
      		                   [0.7, '#37a2da'],
      		                   [1, '#fd666d']
      		                 ]
      		               }
      		             },
      		             pointer: {
      		               itemStyle: {
      		                 color: 'auto'
      		               }
      		             },
      		             axisTick: {
      		               distance: -15,
      		               length: 3,
      		               lineStyle: {
      		                 color: '#fff',
      		                 width: 1
      		               }
      		             },
      		             splitLine: {
      		               distance: -15,
      		               length: 3,
      		               lineStyle: {
      		                 color: '#fff',
      		                 width: 2
      		               }
      		             },
      		             axisLabel: {
      		               color: 'auto',
      		               distance: 30,
      		               fontSize: 10
      		             },
      		             detail: {
      		            	fontSize: 18,
      		               valueAnimation: true,
      		               formatter: '{value} /s',
      		               color: 'auto'
      		             },
      		             data: [150]
      		           }
      		         ]
      		       };
       speed.setOption(speed_option);